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RARE Raw Greenstone - Michigan's State Gemstone, Raw and Rare found in Lake Superior Keweenaw Peninsula Michigan, Necklace

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I recently returned from 2 wonderful weeks in the Keweenaw Peninsula of Michigan's Upper Peninsula along the Lake Superior shoreline - which is the largest fresh-water lake in the world, and is where I found this beautiful stone!

Greenstone is Michigan's state GEM. The Greenstone is a mineral named Chlorastrolite, which is a variety of pumpellyite. Sometimes the Greenstone is also called "Turtle Back" because of the segmented pattern that roughly resembles that of turtles' backs. Which is why I have displayed Mr. Turtle in picture three to help you visualize!

This pretty stone has a lovely mostly smooth texture, is somewhat triangular shaped, and has a background of a forest- green, with little circular splotches of lighter sage-green. It measures about 1 inch x 1 inch at its widest points.I have top drilled it with a 2.5mm hole, and fitted it with a very thick and sturdy pure silver-filled jumpring.

It dangles from a shiny silver-toned rolo chain that measures 12 1/2 inches long and clasps together beautifully with a magnetic antique silver rose pair of disc clasps. This is a sturdy assemblage in order to have your gemstone in safe keeping.

I am not a Geologist or Gemologist, and I am puzzled as to whether this is truly a Greenstone Gem or not. I have researched thoroughly, and images of raw Greenstone gemstones are difficult to find, but I DO think this might be the authentic article!

I said all that to say this: If this is truly a Greenstone, it is rare and valuable. They are very costly. But I cannot fairly charge a high price as I cannot prove this is what I think it is, thus reflected in my lower pricing.

RARE Raw Greenstone - Michigan's State Gemstone, Raw and Rare found in Lake Superior Keweenaw Peninsula Michigan, Necklace


  • Handmade item
  • Materials: Michigan greenstone, Michigan gemstone, Lake Superior stone, greenstone, rare raw greenstone, drilled greenstone, silver fill jumpring, magnetic clasp, rare gemstone, rare greenstone
  • Ships worldwide from United States
  • Feedback: 606 reviews
  • Favorited by: 1 person